A lot of posts (and comments) are context-dependent, either as part of a series, or as part of a topic exploration by a set of authors who are discussing both here and in other media (including offline conversations). In these cases, knowing the author’s previous work is necessary to the evaluation of a given post. Basically, posts aren’t fully independent.
Also, within this site, “high status” correlates pretty well with “high quality posts”, so that bias doesn’t actually lead to incorrect results very often.
A lot of posts (and comments) are context-dependent, either as part of a series, or as part of a topic exploration by a set of authors who are discussing both here and in other media (including offline conversations). In these cases, knowing the author’s previous work is necessary to the evaluation of a given post. Basically, posts aren’t fully independent.
Also, within this site, “high status” correlates pretty well with “high quality posts”, so that bias doesn’t actually lead to incorrect results very often.